1 Human development is the scientific study of processes of change and stability.  The scientific study of human development began with studies of childhood during the nineteenth century.
verb (used with object), cultivated, cultivating. 1. to prepare and work on (land) in order to raise crops; till. 2. to use a cultivator on. 3. to promote or improve the growth of (a plant, crop, etc.) by labor and attention.
I started in telecommunications back when a crank on the phone had to be turned before asking the telephone operator to connect a call. A cultivator is a garden or farm implement used to break up the surface of the soil for aeration, weed control, and the conservation of moisture. started in telecommunications back when a crank on the phone had to be turned before asking the telephone operator to connect a call. A cultivator is a garden or farm implement used to break up the surface of the soil for aeration, weed control, and the conservation of moisture.